Scenario: Aspose.Cells 8.5.0. I try to test if XLS/XLT is encrypted by means of FileFormatUtil.DetectFileFormat method. Sample XLS is encrypted and write protected.
Thanks for your posting and using Aspose.Cells.
We were able to observe this issue as mentioned by you with the latest version: Aspose.Cells for .NET 8.5.0. Please also provide us the password to open your source excel file for our further investigation.
Thanks for providing the password and using Aspose.Cells.
We were able to observe this issue and logged it in our database for investigation. We will look into it and fix this issue. Once the issue is resolved or we have some other update for you, we will let you know asap.
This issue has been logged as CELLSNET-43737.
Thanks for using Aspose.Cells.
This is to inform you that we have fixed your issue CELLSNET-43737 now. We will soon provide the fix after performing QA and including other enhancements and fixes.